Code execution via uninitialized VC6 parser memory
Published Sep 17, 2025 · Updated Sep 17, 2025
Use of uninitialized memory in Ashlar-Vellum Graphite 13 SE build 13048 allows remote attackers to execute code through crafted VC6 files. The VC6 file parser accesses memory before the relevant variable is initialized, allowing attacker-controlled file data to influence execution. Exploitation requires a user to visit a malicious page or open a malicious file, and successful execution runs in the current Graphite process.
Summary
What happened
Use of uninitialized memory in Ashlar-Vellum Graphite 13 SE build 13048 allows remote attackers to execute code through crafted VC6 files. The VC6 file parser accesses memory before the relevant variable is initialized, allowing attacker-controlled file data to influence execution. Exploitation requires a user to visit a malicious page or open a malicious file, and successful execution runs in the current Graphite process.
The record
- CVE
- CVE-2025-7978
- Published
- Sep 17, 2025
- Updated
- Sep 17, 2025
- Vendor
- Ashlar-Vellum
- Product
- Graphite
- Classifications
- CWE-457, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 17, 2025CVE publishedPublication date reported by the CVE source.
- Sep 17, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=13_SE_13048
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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